/*
 * Copyright 2021 DataCanvas
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.dingodb.calcite.meta;

import com.google.common.collect.ImmutableList;
import org.apache.calcite.rel.metadata.ChainedRelMetadataProvider;

public class DingoRelMetadataProvider extends ChainedRelMetadataProvider {
    public static DingoRelMetadataProvider INSTANCE = new DingoRelMetadataProvider();

    private DingoRelMetadataProvider() {
        super(ImmutableList.of(
            DingoRelMdRowCount.SOURCE,
            DingoRelMdColumnUniqueness.SOURCE,
            DingoRelMdSelectivity.SOURCE,
            DingoRelMdCost.SOURCE
        ));
    }
}
